My '73 Duster had the snakeskin pattern on it when I first got it. From what I read in "Dodge Dart and Plymouth Duster" by Steve Statham the snakeskin vynil was special to the Gold Duster Package in 1972 and 1973. My car had it as the 3/4 or Canpoy roof style. I replaced it with the standard boar grain when it went to shreds and have never seen a replacement or any other car with that style vynil for that matter.
Here's the exerpt from the book:
"The Gold Duster option included such posh features as deluxe wheel covers with whitewalls and an exclusive gold color, plus Gold Duster identification and a reptile-grain vynil top. The option could be teamed with either the 225-ci Slant Six or the 318 V-8, but not the base 198 Six or 340 V-8."
(Statham, P78 )
